Math1.62 is divible by which of the following numbers? A.1,3,31,62 B.1,2,3,31 C.1,4,16,62 D.1,2,31,62 I PICKED D. ------------------------------- 2.108 is divisible by which of the following sets of numbers? A.1,2,3,4,6,9,12,18,27,36,54,108 b.1,2,4,27,54,108 C.1,2,3,6,18,36,54,108...
October 31, 2013

calculusA trough is 6 feet long and has ends that are isosceles triangles that are 1 foot high and 3.5 feet wide. If the trough is being filled at a rate of 9 cubic feet per minute, how fast is the height of the water increaseing when the height is 5 inches?
October 28, 2013

calculusA street light is at the top of a 15.000 ft. tall pole. A man 6.300 ft tall walks away from the pole with a speed of 6.000 feet/sec along a straight path. How fast is the tip of his shadow moving when he is 45.000 feet from the pole?
October 28, 2013

ChemistryA student began adding titrant to the acid solution, but stopped when she suddenly realized that she forgot to add the 3 drops of phenolphthalein. When she did, the solution immediately turned dark red! What can the student do to correct this error and salvage this trial, so ...
October 27, 2013

PhysicsA ball whirls around in a vertical circle at the end of a string. The other end of the string is fixed at the center of the circle. Assume that the total energy of the ball-Earth system remains constant. (a) What is the tension in the string at the bottom? (Use the following ...
October 21, 2013

ChemistryA mixture of C3H8 and C2H2 has a mass of 2.3g . It is burned in excess O2 to form a mixture of water and carbon dioxide that contains 1.6 times as many moles of CO2 as of water. What is the mass of C2H2 in the original mixture?
October 19, 2013

GeologyCan someone please help me with my review? 1)What grade of metamorphism common rocks are formed in- --- Is it high grade? 2)What is the name of the most rapid kind of mass wasting is> -- Weathering? 3)How to tell is a rock is igneous, metamorphic or sedimentary. 4)How to ...
October 17, 2013

GeogolyCan someone please help me with my review? 1)What grade of metamorphism common rocks are formed in- --- Is it high grade? 2)What is the name of the most rapid kind of mass wasting is> -- Weathering? 3)How to tell is a rock is igneous, metamorphic or sedimentary. 4)How to ...
October 17, 2013

PhysicsA drag racer starts her car from rest and accelerates at 9.2 m/s2 for the entire distance of 631 m. How long did it take the car to travel this distance? Answer in units of s
October 13, 2013

ChemistryWhat are the equations for these two equations? Not net ionic equations. a) Nickel (II) chloride and iron b) Sodium and water
October 12, 2013

ChemistryThanks Dr.Bob. For number three. Cl is Chlorine. And for number 6 K4C is potassium carbide. I wanted the combustion formula for that. I guess what it creates when it undergoes combustion.
October 10, 2013

ChemistryI have a few question for my review. 1) How would you prepare 30.0 ml of 0.600M HNO3 From a stock solution of 4.00M HNO3? What volume in ML of the 4.00 M HNo3 will you need? 2) if a 83.5 & was repoarted for a reaction that could have produced 12.1 g of product? what was the ...
October 10, 2013

PhysicsA bullet of mass 10.6 grams is fired with a speed of 125 meters per second toward a wood block of mass 187 grams initially at rest on a very smooth (assume frictionless) surface. What is the change in momentum of the bullet if it becomes embedded in the block?
October 10, 2013

physicsA block of mass m1 = 28 kg rests on a wedge of angle θ = 47∘ which is itself attached to a table (the wedge does not move in this problem). An inextensible string is attached to m1, passes over a frictionless pulley at the top of the wedge, and is then attached to ...
October 9, 2013

PHYSICSA block of mass m1 = 28 kg rests on a wedge of angle θ = 47∘ which is itself attached to a table (the wedge does not move in this problem). An inextensible string is attached to m1, passes over a frictionless pulley at the top of the wedge, and is then attached to ...
October 9, 2013

ChemistryIn the space below, show your work for determining the volume, mass, and moles of baking soda Moles of baking soda reacted Mass of baking soda reacted (g) Volume of baking soda reacted 140 ml of vinegar 5 tsps of baking soda were used
October 6, 2013

ChemistryYou have three solutions, A, B, and C, each of which are believed to be one of the following: calcium hydroxide, potassium sulfate, and sodium chloride. Combining B and C results in the formation of a precipitate, but neither solution forms a precipitate with A. Also, adding ...
September 29, 2013

PhysicsA plane, diving with constant speed at an angle of 52.0° with the vertical, releases a projectile at an altitude of 790 m. The projectile hits the ground 6.00 s after release. (Assume a coordinate system in which the airplane is moving in the positive horizontal direction...
September 26, 2013

computersDuane will use an open system LAN because he knows the open system will support varieties of hardware and software components made by different vendors. Steve will use a closed system LAN because he knows the closed system is favored by network manufacturers. Who is using the ...
September 1, 2013

Chemistry1. Hydrogen gas combines with oxygen gas to yield water. if 15 g O2 is present in the reaction, compute how much water will be produced. 2. Ten (10)grams methane gas combines with oxygen gas to form water and carbon dioxide. How much water is produced from the given reaction? ...
August 28, 2013

College AlgebraA family drove 1080 miles to their vacation lodge. Because of increased traffic density, their average speed on the return trip was decreased by 6 miles per hour and the trip took 2.5 hours longer. Determine their average speed on the way to the lodge.
July 13, 2013

MathLet y=f(x) be a function with domain=[-7,8] and range=[-12,9]. Find the range of the function y=-f(2x)
July 8, 2013

ChemistryThe Henry\'s law constant for CO2(g) in water at 25 °C is 29.4 bar·M1. Estimate the concentration of dissolved CO2(g) in a carbonated soft drink pressurized with 1.95 bar of CO2(g).
July 5, 2013

Accounting TheoryInstructions: The Company has one asset. The asset has a three-year life and two possible payoffs each year: 1) $750 with a probability of 40%, and 2) $100 with a probability of 60%. The company depreciates assets using the straight-line method. Assume the states between years...
June 30, 2013

VBA ProgrammingI'm trying to create a macro that asks for a loan between 1 dollar and 5 million, and returns different interest rates based on the amount of the loan. For some reason when I type in different loan amounts it automatically makes my rate ".1", when it should be ...
June 28, 2013

CalculusA ladder of length 10 metres is being drawn up a wall. The top of the ladder is moving upwards at 1 metre per second. Find the speed with which the foot of the ladder is approaching the wall when the foot is 6 metres from the wall.
May 22, 2013

pre calculusEnvironmental Concerns: The spread of oil leaking from a tanker is in the shape of a circle. If the radius r (in feet) of the spread after t hours is r(t) = 200sqrt t, find the area A of the oil slick as a function of the time t. I dont get this at all. could someone please ...
April 24, 2013

statistics0.57 of all college students like the idea of a new curriculum. If we select 88 students (ASSUME INDEPENDENCE), what is the Standard Deviation of (the Probability Distribution that would list the number of students (from 0 to 88) and the probability of each.) THE STANDARD ...
April 24, 2013

ChemistryCould somebody please explain why in gaseous reaction the collision frequency between molecules is far greater than the rate at which molecules react? Thanks! :)
April 20, 2013

mathHow do you that rbowh? I am really bad at this.(step by step please)
April 9, 2013

math A math contest consists of ten problems.Three points are given for each correct answer. One point is deducted for each incorrect answer. Andy answers all the problems and scores 18 points. How many correct answers does he have?
April 9, 2013

ChemistryConsider the salt FeSO4.7H20. What quantity in grams of salt could be produced from 1g of iron, assuming the overall reaction yield is 75% ? :) Thanks in advance!
April 5, 2013

ChemistryDescribe how one would obtain the stated pure product from the following mixtures and assume that this cannot be achieved simply by distillation of the original mixture: 1. benzoic acid from a mixture with ammonium benzoate 2. phenylamine from a mixture with nitrobenzene, HCl ...
April 5, 2013

ChemistryCalculate the change in pH if 0.050 g of solid NaOH is added to 250 mL of a buffer solution that contains 0.80 M NaH2PO4 and 0.17M Na2HPO4. I found the pH of the buffer solution to be 6.54.
April 4, 2013

Programming and DesignDraw the hierarchy chart and design the logic for a program that calculates the projected cost of an automobile trip. Assume that the user's car travels 20 miles per gallon of gas. Design a program that prompts the user for a number of miles driven and a current cost per ...
April 3, 2013

MathI need to verify this equation and I get stuck after trying everything I can think of. Help! cos(4x)=4[sin(x)cos(x)-sin^3(x)cos(x)]
April 2, 2013

physicsA uniform, 264-N rod that is 2.05 m long carries a 225-N weight at its right end and an unknown weight W toward the left end. When W is placed 47.9 cm from the left end of the rod, the system just balances horizontally when the fulcrum is located 82.7 cm from the right end. ...
April 2, 2013

ChemistryCalculate both the moles and grams in each of the following? a. 6.02 x 10^23 atoms of Na e. 3.01 x 10^23 atoms of S
March 24, 2013

Mathwrite an equation which must be true if the line from p(x,y) to a(25,0) is perpendicular to the line from P(x,y) to the center of the circle x^2+y^2=400
March 23, 2013

Mathwrite an equation which must be true if the line from p(x,y) to a(25,0) is perpendicular to the line from P(x,y) to the center of the circle x^2+y^2=400
March 23, 2013

physicsAfter falling from rest from a height of 26 m, a 0.49-kg ball rebounds upward, reaching a height of 16 m. If the contact between ball and ground lasted 1.8 ms, what average force was exerted on the ball?
March 20, 2013

Accounting 202I would suggest lowering miscellaneous expenses. They seem to be a large amount and we do not know what for. This takes away from the companies revenue and budget for the next year. Also, you could look at the COGS and see if producing more would provide more profit. If more ...
March 18, 2013

MathBelmont Records produces DVD records. The fixed costs for producing a record are $160,000, and unit cost amount to 85 cents per record. The revenue is $5 per DVD. (a) How many DVDs must be sold in order to break even? (b) Find the profit or loss if 20,000 DVDs are sold. (c) ...
March 17, 2013

Finite MathA Specialty shop owner used a revenue function and a cost-volume function to analyze his monthly sales. one month he found that with a sales volume of 1465 items he had revenues of $32,962.50 and a total cost of $26,405.50. Another month he had total costs of $17,638 on a ...
March 16, 2013

Help Please MathA principal of $2500 is invested,part at 8% per annum and the rest at 12% per annum. In a year, the 8% investment interest was doubled the 12% investment interest. How much invested at each rate? Express in the form Ax+By=C
March 15, 2013

MathTwo numbers differ by 9. 4 times the smaller is 5 more then twice the larger. Find the numbers.
March 15, 2013

calculusGiven (x) = 2x^2 - 3x - 1 find the slope and equation of the tangent line to  at the point (1, -2)
March 13, 2013

physicsShyanne (60 kg) has to walk across a single rope bridge to cross a river. When she's at the exact middle point, the rope bridge is deflected at an angle of 15 degrees from the horizontal. What is the tension in the bridge?
March 10, 2013

BiologyWhich of the following mutations would you expect to have the greatest effect on a living cell? A. A mutation that changes a single base in a region of noncoding DNA B. Energy release from plutonium C. Consumptions of preexisting organic compounds Im clueless!!!
February 25, 2013

BiologyWhich of the following mutations would you expect to have the greatest effect on a living cell? A. A mutation that changes a single base in a region of noncoding DNA B. Energy release from plutonium C. Consumptions of preexisting organic compounds
February 24, 2013

BiologyWhich of the following mutations would you expect to have the greatest effect on a living cell? A. A mutation that changes a single base in a region of noncoding DNA B. Energy release from plutonium C. Consumptions of preexisting organic compounds Im clueless!!!
February 24, 2013

math find the area of the shaded region in the figure assuming the quadrilateral inside the circle is a square. x^2+y^2=36 (the picture is of a square inside a circle on a coordinate plane)
February 23, 2013

physicsa curling rock with a mass 22 kg is traveling 0 degrees at 3m/s and collides with a stationary object with the same mass the collision is a glancing one and the struck roce is moving 1m/s at 65 degrees what is the velocity after the collision
February 19, 2013

Finite MathThe amount desired in a sinking fund is given. Find the periodic payments required to obtain the desired amount. A = $75,000, the interest rate is 7.2%, and payments are made quarterly for 4 years.
February 18, 2013

Finite MathThe amount (future value) of an ordinary annuity is given. Find the periodic payments. A = $14,500, and the annuity earns 6% compounded monthly for 10 years.
February 18, 2013